Finding the Fourth Proportional to 65,865.76, 99,290.71 and 60,261.10

Step by Step Solution

1. Step 1: Write the proportion equation
   65,865.76 : 99,290.71 = 60,261.10 : x
2. Step 2: Convert to fraction form
   65,865.76/99,290.71 = 60,261.10/x
3. Step 3: Cross multiply
   65,865.76x = 99,290.71 × 60,261.10
4. Step 4: Simplify right side
   65,865.76x = 5,983,367,404.38
5. Step 5: Solve for x
   x = 5,983,367,404.38/65,865.76
6. Step 6: Final answer
   x = 90,841.85